…who are Israelites; to whom pertaineth the adoption, and the glory, and the covenants, and the giving of the law, and the service of God, and the promises; whose are the fathers, and of whom as concerning the flesh Christ came, who is over all, God blessed for ever. Amen. – Romans 9:4,5

“Israel is my first-born,” says God…They had the first hold of all the spiritual gifts which the Lord bestowed upon the sons of men. They had, as it were, a monopoly of Light and Truth among them. The Jewish people had been singularly favored—they had seen God revealing His Son to them by types, by priests, by sacrifices, by the temple, by a thousand signs and marks. Verily the kingdom of God had come very near to them. But the privileges of the Jews were not greater than the privileges of men and women who hear the Gospel in these days, for Christ is not so well seen in bleeding bulls and rams and hyssop and scarlet wool as He is seen in the preaching of the Gospel! In the Gospel, God has torn the veil and made bare His heart to us in the Person of His dying Son.

You have no longer to search for the mind of God by mysterious hieroglyphs—it is written in plain letters and the wayfaring man, though a fool, need not err therein! You have but to hear it and with the exercise of an ordinary understanding, the letter of its meaning may be comprehended. And if there is a willing heart, no matter how small the capacity of the mind, there is intellect enough to receive the saving Truth of God! You do not now live in the moonlight of the Jewish dispensation, but you bask in the noontide sunlight of the Truth of God! God, who spoke to our fathers by the Prophets, has, in these last days, spoken to us by His Son who is the express image of His Person and the brightness of His Glory! “See that you refuse not Him that speaks.” ~ C.H. Spurgeon

https://www.blueletterbible.org/comm/spurgeon_charles/sermons/1425.cfm